Manual
Table Of Contents
- HP Virtual Connect for c-Class BladeSystemVersion 3.01User Guide
- Notice
- Contents
- Introduction
- Overview
- HP Virtual Connect Manager
- Domain management
- Domain overview
- Firmware updates
- Domain Settings (Domain Configuration) screen
- Domain Settings (Domain IP Address) screen
- Domain Settings (Domain Enclosures) screen
- Domain Settings (Backup/Restore) screen
- Domain Settings (Local Users) screen
- Directory Settings (Directory Server) screen
- Directory Settings (Directory Groups) screen
- Directory Settings (Directory Certificate) screen
- Test LDAP authentication
- SNMP overview
- System Log screen
- System Log Configuration
- Network management
- Networks overview
- Define Ethernet Network screen
- Edit Ethernet Network screen
- Ethernet Networks (External Connections) screen
- Ethernet Networks (Server Connections) screen
- Ethernet Settings (MAC Addresses) screen
- Ethernet Settings (Port Monitoring) screen
- Ethernet Settings (Advanced Settings) screen
- Stacking Links screen
- Shared uplink sets and VLAN tagging
- Define Shared Uplink Set screen
- Shared Uplink Sets (External Connections) screen
- Shared Uplink Sets (Associated Networks) screen
- Storage management
- Server management
- Certificate Administration
- Hardware information screens
- Enclosure Information screen
- Enclosure Status screen
- Interconnect Bays Status and Summary screen
- Causes for INCOMPATIBLE status
- Interconnect Bay Summary screen (Ethernet module)
- Interconnect Bay Summary screen (VC-FC Module)
- Module removal and replacement
- Interconnect Bay Overall Status icon definitions
- Interconnect Bay OA Reported Status icon definitions
- Interconnect Bay VC Status icon definitions
- Interconnect Bay OA Communication Status icon definitions
- Server Bays Summary screen
- Server Bay Status screen
- Acronyms and abbreviations
- Glossary
- Index

Network management 63
For additional information, see "MAC address settings (on page 63)."
MAC Address Settings
IMPORTANT: Configuring Virtual Connect to assign server blade MAC addresses requires
careful planning to ensure that the configured range of MAC addresses is used once within
the environment. Duplicate MAC addresses on an Ethernet network can result in a server
network outage.
Each server blade Ethernet NIC ships with a factory default MAC address. The MAC address is a 48-bit
number that uniquely identifies the Ethernet interface to other devices on the network. While the hardware
ships with default MAC addresses, Virtual Connect has the ability to assign MAC addresses that will
override the factory default MAC addresses while the server remains in that Virtual Connect enclosure.
When configured to assign MAC addresses, Virtual Connect securely manages the MAC addresses by
accessing the physical NICs through the enclosure Onboard Administrator and the iLO interfaces on the
individual server blades.
Always establish control processes to ensure that a unique MAC address range is used in each Virtual
Connect domain in the environment. Reusing address ranges could result in server network outages
caused by multiple servers having the same MAC addresses.
If using Virtual Connect assigned MAC addresses, the following notes apply:
• Virtual Connect automatically reserves both a primary address and an iSCSI MAC address for use
by multifunction gigabit server adapters, such as the HP NC373m PCI Express Dual Port